WO1995022403A1 - Absorbents - Google Patents
Absorbents Download PDFInfo
- Publication number
- WO1995022403A1 WO1995022403A1 PCT/GB1995/000303 GB9500303W WO9522403A1 WO 1995022403 A1 WO1995022403 A1 WO 1995022403A1 GB 9500303 W GB9500303 W GB 9500303W WO 9522403 A1 WO9522403 A1 WO 9522403A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- alumina
- granules
- weight
- binder
- sodium
- Prior art date
Links
- 239000002250 absorbent Substances 0.000 title claims abstract description 29
- 230000002745 absorbent Effects 0.000 title claims abstract description 29
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000008187 granular material Substances 0.000 claims abstract description 31
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims abstract description 18
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 14
- 239000003513 alkali Substances 0.000 claims abstract description 13
- 239000011230 binding agent Substances 0.000 claims abstract description 12
- 239000011734 sodium Substances 0.000 claims abstract description 11
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910001948 sodium oxide Inorganic materials 0.000 claims abstract description 7
- 230000002378 acidificating effect Effects 0.000 claims abstract description 5
- 239000011872 intimate mixture Substances 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000011369 resultant mixture Substances 0.000 claims description 3
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 2
- 239000011396 hydraulic cement Substances 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 13
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 abstract description 13
- 229910000041 hydrogen chloride Inorganic materials 0.000 abstract description 13
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 abstract description 11
- 229910000030 sodium bicarbonate Inorganic materials 0.000 abstract description 6
- 235000017557 sodium bicarbonate Nutrition 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 239000002594 sorbent Substances 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229960000892 attapulgite Drugs 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 229910052625 palygorskite Inorganic materials 0.000 description 3
- 150000004684 trihydrates Chemical class 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910014142 Na—O Inorganic materials 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001339 alkali metal compounds Chemical class 0.000 description 1
- -1 alkali metal salt Chemical class 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/041—Oxides or hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/043—Carbonates or bicarbonates, e.g. limestone, dolomite, aragonite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
- B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28004—Sorbent size or size distribution, e.g. particle size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/2803—Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28057—Surface area, e.g. B.E.T specific surface area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3028—Granulating, agglomerating or aggregating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
Definitions
- This invention relates to absorbents, and to a process for their manufacture, in particular to absorbents suitable for removing contaminant acidic gases such as hydrogen chloride from gas streams
- Such absorbents are typically employed as a bed through which the gas stream to be treated is continuously passed the contaminant hydrogen chloride is absorbed by the absoroent so that the effluent gas nas a relatively iow nydrogen cnlo ⁇ de content After a peno ⁇ of time the absorbent becomes loaded with absorbed hydrogen chloride until the absorbent bed is unable to reduce the hydrogen chloride content to an acceptable level typically it is desired to have an effluent gas containing less than a specified amount e g 0 1 ppm by volume of hydrogen chloride When the effluent gas contains an unacceptable Drooortion of hydrogen chloride "brea ⁇ -through" is said to have occurred It is normally found that when Dreak-through has occurred the chloride content of the bed is somewhat less than the theoretical maximum thus while samples taken from o
- One type of known aDsoroent for removing contaminant acidic gases such as hydrogen chloride from gas streams comprises alumina granules that have been impregnated with sodium ny ⁇ roxi ⁇ e or carbonate and then calcine ⁇ at a high temperature at for example above 500°C Calcination at such temperatures causes at least some of the sodium hydroxide or carbonate to react with the alumina to form so ⁇ ium aiummate
- Such absorbent granules in which some of the sodium is present as sodium aluminate as a result of the reaction typically have a total sodium content (expressed as sodium oxide. Na-O) of the order of 12-14% by weight as measured on a sample that has been ignited at 900°C
- These absorbents exhibit acceptable activity for the absorption of hydrogen chloride at relatively high temperatures for example of the order of 350°C, and "break-through" (giving a product gas containing more than 0 1 ppm by volume of hydrogen chloride) typically occurs when the absorbent has a total chlorine content of about 15-17% by weight
- break-through (0 1 ppm HCI) may occur when the be ⁇ has an average chlorine content of only about 8-9% by weight
- the present invention provides aosorbent granules comprising an intimate mixture of an alumina component selected from alumina and/or hydrated alumina an alkali component seJected from sodium carbonate and/or sodium bicarbonate in weight proportions of 0 5 to 2 parts of sai ⁇ alkali component per pan of said alumina component and a binder, said granules containing from 5 to 20% by weight of said binder and having an alkali component content such that after ignition of a samDle of the granules at 900°C. the sample has a sodium oxide, Na 2 0, content of at least 20% by weight
- the aDsorbent granules preferably nave an average size of at least about 2 mm and preferably at least about 3 mm as a bed of smaller granules is liable to present an unacceptable resistance to flow of gas therethrougn Thus an unacceptably high pressure drop is experienced upon passage of the gas througn a bed of small granules
- the granules preferably have a BET surface area of at least 10 nrr/g
- the binder may be a suitable hydraulic cement, such as calcium alummate cement Alternatively, and preferably, the binder comprises a clay, for example an acicular clay such as attapulgite or sepiolite
- the absorbents of the present invention may be made Dy granulating a mixture of alumina or a hydrated alumina such as alumina t ⁇ hydrate, sodium carbonate, or, preferably, bicarbonate, and the binder, in the requisite proportions and calcining the resultant mixture at a moderate temperature, i ⁇ below about 350°C, and preferably in the range 105-300 ⁇ C At such temperatures, it is believed that little or no decomposition of aluminium t ⁇ hydrate occurs but the sodium bicarbonate is converted to sodium carbonate X-ray diffraction examination shows the sodium present only as a sodium carbonate phase little or no sodium alummate is formed
- granulation we mean mixing the powdered ingredients, i e alumina and/or hydrated alumina, sodium carbonate an ⁇ /or bicarbonate, and binder, with a little wetting agent such as water, in an amount that is insufficient to form a slurry, and forming the resultant mixture into aggregates, generally of approximate spherical configuration
- granulation techniques are well known in the art.
- alumina t ⁇ hy ⁇ rate rather than alumina, since granulation of compositions containing a high proportion of sodium carbonate or bicarbonate and alumina tends 5 to present difficulties.
- the ingredients In order to make agglomerates of adequate strength it is desirable to employ the ingredients in a finely divided form Typically the ingredients have an average particle size in the range 10 1-20 ⁇ m, preferably in the range 5-10 ⁇ m.
- Example 1 Sodium bicarbonate (8 kg), alumina trihydrate (8 kg) and attapulgite clay (1.6 kg), each in finely divided powder form having an average panicle size in the range 5-10 ⁇ m, were dry mixed ⁇ " 5 Part of the mixture (about 2 kg) was charged to a Hobart mixer of 25 I caDacity and stirred therein at a speed of about 60 rpm (1 Hz). Water was slowly added while stirring until the mixture adhered to form small balls or agglomerates. Further amounts of the powder mixture and water were gradually added until all the powder mixture had formed into agglomerates. The agglomerates were then sieved to reject agglomerates having a size Delow about 3 mm or above 2Q about 5 mm
- sample A of the dried agglomerates was tested as set out below The temperature of the oven was then increaseo to 200 ⁇ C at a rate of 10°C/m ⁇ n. and maintained at 200°C for 3 hours to effect calcination, and then a samDle (Sample B) of the calcined agglomerates was also tested 5
- Both samples of agglomerates had a bulk density of about 0 8 g/ml and a BET surface area of about 14 nr/g Analysis of samples of the agglomerates after ignition at 900°C showed a sodium oxide. Na.O, content of over 30% by weight.
- Samples A and B were then tested for their hydrogen chlo ⁇ de absorption characteristics by passing methane containing about 1 % by volume of hydrogen chloride at atmospheric pressure 0 and about 20°C down through a vertical bed of the pellets or granules of height 12 cm and height to diameter ratio of 5 at a space velocity of approximatelt 700 h '1
- the time taken before the hydrogen chloride content of the exit gas reached 1 ppm by volume was determined and is quoted in the following table as the "break-through time to 1 ppm HCI".
- the granules were then carefully discharged from the bed and divided into 6 portions corresponding to 2 cm bands of the bed 35 depth. Each portion was analysed for the chloride content. The results are shown in the following table: Sample A Sample B
- the absorbent granules C of the invention ha ⁇ a far greater capacity for cnlo ⁇ de than the sorbents D or E. despite the much lower BET surface area of the absorbent granules C.
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Thermal Sciences (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
- Paper (AREA)
- Gas Separation By Absorption (AREA)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP95908315A EP0746409B1 (en) | 1994-02-21 | 1995-02-14 | Absorbents |
| KR1019960704575A KR970701094A (ko) | 1994-02-21 | 1995-02-14 | 흡수제(absorbents) |
| DE69502940T DE69502940T2 (de) | 1994-02-21 | 1995-02-14 | Sorbentmittell |
| AU16678/95A AU683992B2 (en) | 1994-02-21 | 1995-02-14 | Absorbents |
| JP7521652A JPH09508855A (ja) | 1994-02-21 | 1995-02-14 | 吸収剤 |
| DK95908315T DK0746409T3 (da) | 1994-02-21 | 1995-02-14 | Absorbenter |
| US08/693,202 US5897845A (en) | 1994-02-21 | 1995-02-14 | Absorbents |
| NO963458A NO963458L (no) | 1994-02-21 | 1996-08-20 | Absorbenter |
| MXPA/A/1996/004146A MXPA96004146A (en) | 1994-02-21 | 1996-09-18 | Absorben granules |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9403260.4 | 1994-02-21 | ||
| GB9403260A GB9403260D0 (en) | 1994-02-21 | 1994-02-21 | Absorbents |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1995022403A1 true WO1995022403A1 (en) | 1995-08-24 |
Family
ID=10750663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/GB1995/000303 WO1995022403A1 (en) | 1994-02-21 | 1995-02-14 | Absorbents |
Country Status (16)
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999039819A1 (en) * | 1998-02-06 | 1999-08-12 | Imperial Chemical Industries Plc | Absorbents |
| RU2219995C2 (ru) * | 1998-02-11 | 2003-12-27 | Энститю Франсэ Дю Петроль | Способ удаления галогенсодержащих соединений из газа или жидкости |
| US7842287B2 (en) * | 2001-01-23 | 2010-11-30 | Multisorb Technologies, Inc. | Acid-gas absorbing tablet and method of use |
| WO2015092359A1 (en) * | 2013-12-18 | 2015-06-25 | Johnson Matthey Public Limited Company | Method for preparing a sorbent |
| WO2015101768A1 (en) * | 2014-01-03 | 2015-07-09 | Johnson Matthey Public Limited Company | Sorbent for halogen compounds |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3948075B2 (ja) * | 1997-10-01 | 2007-07-25 | 旭硝子株式会社 | 酸性成分除去剤および酸性成分除去方法 |
| JP3571219B2 (ja) * | 1998-07-03 | 2004-09-29 | 財団法人電力中央研究所 | ハロゲン化物吸収剤の生成方法 |
| US6936565B2 (en) * | 1999-01-12 | 2005-08-30 | Hyperion Catalysis International, Inc. | Modified carbide and oxycarbide containing catalysts and methods of making and using thereof |
| US20040115134A1 (en) * | 1999-06-22 | 2004-06-17 | Elan Pharma International Ltd. | Novel nifedipine compositions |
| ES2260144T3 (es) * | 2000-11-10 | 2006-11-01 | Asahi Glass Co., Ltd. | Metodo para eliminar un gas de la serie de los halogenos. |
| US7087156B2 (en) * | 2002-12-19 | 2006-08-08 | W.R. Grace & Co. - Conn. | Process for removal of nitrogen containing contaminants from gas oil feedstreams |
| US7160438B2 (en) * | 2002-12-19 | 2007-01-09 | W.R. Grace & Co. - Conn. | Process for removal of nitrogen containing contaminants from gas oil feedstreams |
| JP4952250B2 (ja) * | 2004-12-13 | 2012-06-13 | 旭硝子株式会社 | ハロゲン系ガスの除去方法及びハロゲン系ガスの除去剤 |
| US7758837B2 (en) * | 2005-05-06 | 2010-07-20 | Uop Llc | Scavengers for removal of acid gases from fluid streams |
| US8016125B2 (en) * | 2005-05-20 | 2011-09-13 | Lutek, Llc | Materials, filters, and systems for immobilizing combustion by-products and controlling lubricant viscosity |
| US20070116620A1 (en) * | 2005-11-21 | 2007-05-24 | Kanazirev Vladislav I | Halide scavengers for high temperature applications |
| SE530959C2 (sv) * | 2006-05-29 | 2008-11-04 | Climatewell Ab Publ | Kemisk värmepump med hybridsubstans |
| US7790130B2 (en) * | 2007-08-31 | 2010-09-07 | Uop Llc | Wide mesoporous alumina composites having trimodal pore structure |
| SE532604C2 (sv) * | 2007-11-29 | 2010-03-02 | Climatewell Ab Publ | Anläggning och sätt för energilagring och/eller transport |
| SE532504C2 (sv) * | 2007-11-29 | 2010-02-09 | Climatewell Ab Publ | Termisk solfångare för leverans av värme och/eller kyla |
| US20090194484A1 (en) * | 2008-02-01 | 2009-08-06 | Lutek, Llc | Oil Filters Containing Strong Base and Methods of Their Use |
| KR101521247B1 (ko) * | 2013-12-26 | 2015-05-20 | 주식회사 포스코 | 염화수소 제거용 흡착제 제조방법 및 이에 따라 제조된 흡착제를 이용한 고온의 코크스 오븐 가스 중 염화수소의 제거방법 |
| GB201513836D0 (en) | 2015-08-05 | 2015-09-16 | Johnson Matthey Plc | Chemical absorbent composition |
| WO2022162626A1 (en) | 2021-01-29 | 2022-08-04 | Sud Chemie India Pvt Ltd | Low-cost novel adsorbent with high chloride removal capacity |
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| US3629153A (en) * | 1969-02-12 | 1971-12-21 | Grace W R & Co | Process for preparing alkalized alumina |
| EP0234433A1 (de) * | 1986-02-18 | 1987-09-02 | BASF Aktiengesellschaft | Verfahren zur Reinigung von Gasen |
| US4755499A (en) * | 1984-10-12 | 1988-07-05 | Noxso Corporation | Sorbent for removing nitrogen oxides, sulfur oxides and hydrogen sulfide from gas streams |
| WO1992000803A1 (en) * | 1990-07-03 | 1992-01-23 | Alcan International Limited | Alumina-containing acid adsorbents and process for producing same |
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| US5316998A (en) * | 1992-05-05 | 1994-05-31 | Discovery Chemicals, Inc. | HCl adsorbent and method for making and using same |
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- 1995-02-14 DK DK95908315T patent/DK0746409T3/da active
- 1995-02-14 WO PCT/GB1995/000303 patent/WO1995022403A1/en active IP Right Grant
- 1995-02-14 US US08/693,202 patent/US5897845A/en not_active Expired - Fee Related
- 1995-02-14 DE DE69502940T patent/DE69502940T2/de not_active Expired - Fee Related
- 1995-02-14 KR KR1019960704575A patent/KR970701094A/ko not_active Withdrawn
- 1995-02-14 AT AT95908315T patent/ATE167084T1/de active
- 1995-02-14 ES ES95908315T patent/ES2117404T3/es not_active Expired - Lifetime
- 1995-02-14 JP JP7521652A patent/JPH09508855A/ja active Pending
- 1995-02-14 CA CA002183319A patent/CA2183319A1/en not_active Abandoned
- 1995-02-14 EP EP95908315A patent/EP0746409B1/en not_active Expired - Lifetime
- 1995-02-14 AU AU16678/95A patent/AU683992B2/en not_active Ceased
- 1995-02-17 TW TW084101472A patent/TW304170B/zh active
- 1995-02-17 MY MYPI95000411A patent/MY130187A/en unknown
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1996
- 1996-08-20 NO NO963458A patent/NO963458L/no not_active Application Discontinuation
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|---|---|---|---|---|
| GB1234931A (en) * | 1967-05-10 | 1971-06-09 | Unilever Ltd | Alkalised alumina |
| FR1601652A (enrdf_load_stackoverflow) * | 1968-05-13 | 1970-09-07 | ||
| US3629153A (en) * | 1969-02-12 | 1971-12-21 | Grace W R & Co | Process for preparing alkalized alumina |
| US4755499A (en) * | 1984-10-12 | 1988-07-05 | Noxso Corporation | Sorbent for removing nitrogen oxides, sulfur oxides and hydrogen sulfide from gas streams |
| EP0234433A1 (de) * | 1986-02-18 | 1987-09-02 | BASF Aktiengesellschaft | Verfahren zur Reinigung von Gasen |
| WO1992000803A1 (en) * | 1990-07-03 | 1992-01-23 | Alcan International Limited | Alumina-containing acid adsorbents and process for producing same |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999039819A1 (en) * | 1998-02-06 | 1999-08-12 | Imperial Chemical Industries Plc | Absorbents |
| US6558641B1 (en) | 1998-02-06 | 2003-05-06 | Imperial Chemical Industries Plc | Absorbents |
| RU2219995C2 (ru) * | 1998-02-11 | 2003-12-27 | Энститю Франсэ Дю Петроль | Способ удаления галогенсодержащих соединений из газа или жидкости |
| US7842287B2 (en) * | 2001-01-23 | 2010-11-30 | Multisorb Technologies, Inc. | Acid-gas absorbing tablet and method of use |
| US7892527B2 (en) * | 2001-01-23 | 2011-02-22 | Multisorb Technologies, Inc. | Acid-gas absorbing tablet and method of use |
| WO2015092359A1 (en) * | 2013-12-18 | 2015-06-25 | Johnson Matthey Public Limited Company | Method for preparing a sorbent |
| US9919286B2 (en) | 2013-12-18 | 2018-03-20 | Johnson Matthey Public Limited Company | Method for preparing a sorbent |
| US10272413B2 (en) | 2013-12-18 | 2019-04-30 | Johnson Matthey Public Limited Company | Method for preparing a sorbent |
| WO2015101768A1 (en) * | 2014-01-03 | 2015-07-09 | Johnson Matthey Public Limited Company | Sorbent for halogen compounds |
| GB2522989B (en) * | 2014-01-03 | 2018-02-07 | Johnson Matthey Plc | Sorbent for halogen compounds |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA951112B (en) | 1995-08-21 |
| TW304170B (enrdf_load_stackoverflow) | 1997-05-01 |
| EP0746409A1 (en) | 1996-12-11 |
| US5897845A (en) | 1999-04-27 |
| DK0746409T3 (da) | 1999-03-22 |
| EP0746409B1 (en) | 1998-06-10 |
| ATE167084T1 (de) | 1998-06-15 |
| AU1667895A (en) | 1995-09-04 |
| DE69502940D1 (de) | 1998-07-16 |
| CA2183319A1 (en) | 1995-08-24 |
| MX9604146A (es) | 1997-12-31 |
| NO963458L (no) | 1996-08-21 |
| KR970701094A (ko) | 1997-03-17 |
| GB9403260D0 (en) | 1994-04-13 |
| NO963458D0 (no) | 1996-08-20 |
| DE69502940T2 (de) | 1998-10-08 |
| JPH09508855A (ja) | 1997-09-09 |
| ES2117404T3 (es) | 1998-08-01 |
| MY130187A (en) | 2007-06-29 |
| AU683992B2 (en) | 1997-11-27 |
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